It's harder to debug and extend a bitmap, and in the real world, single service instances don't scale infinitely, more layers are added. You will never have eno

It's harder to debug and extend a bitmap, and in the real world, single service instances don't scale infinitely, more layers are added. You will never have enough back-ends behind a single proxy for the time spent parsing to be measured. This is a textbook premature optimization. You're designing for academic purity instead of the real world.